Vehicle Stability Control System of Emergency Brake on Split-Mu Road

Based on the slip ratio error and the error variant rate a fuzzy PID control system for vehicle ABS is established to improve the brake performance on split-mu road using Matlab/Simulink. In the control system, the input parameters are the error of the actual measured value and the expected value of slip ratio and the error variant rate. The output parameter in the system is the wheel slip ratio. Using a vehicle parametric dynamics simulation model in Carsim software, the validity of the developed ABS controller is testified. Simulation results show that the fuzzy PID system for ABS can effectively improve the vehicle lateral stability on split-mu road during a braking.